‘Tail of the Dragon’ in Great Smoky Mountains among best-known roads. The 11-mile Tail of the Dragon route at Deals Gap, N.C., is probably the most famous motorcycle road in the country, according to Bill Belei, editor of MotorcycleRoads.com. Indeed, "The Tail" has an amazing 318 curves, many flanked with precipitous drop-offs, creating an exhilarating, unforgettable ride.